Datasheet

MAX1951A
1MHz, 2A, 2.6V to 5.5V Input, PWM DC-DC
Step-Down Regulator with Enable
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Table 2. External Components List
C O M PO N EN T ( F I G U R E 2 ) FUNCTION DESCRIPTION
L1 Output inductor
2µH ±20% inductor
Sumida CDRH4D28-1R8 or
TOKO A915AY-2R0M
C1 Input filtering capacitor
10µF ±20%, 6.3V X5R capacitor
Taiyo Yuden JMK316BJ106ML or
TDK C3216X5R0J106MT
C2 Compensation capacitor
220pF ±10%, 50V capacitor
Murata GRM1885C1HZZ1JA01 or
Taiyo Yuden UMK107CH221KZ
C3 Output filtering capacitor
10µF ±20%, 6.3V X5R capacitor
Taiyo Yuden JMK316BJ106ML or
TDK C3216X5R0J106MT
C4 V
CC
bypass capacitor
0.1µF ±20%, 16V X7R capacitor
Taiyo Yuden EMK107BJ104MA,
TDK C1608X7R1C104K, or
Murata GRM188R171C104KA01
R1 Loop compensation resistor Figure 2
R2 Feedback resistor Figure 2
R3 Feedback resistor Figure 2
R4 Bypass resistor 10Ω ±5% resistor
Table 3. Component Suppliers
MANUFACTURER WEBSITE
Murata Electronics North America, Inc. www.murata-northamerica.com
Sumida Corp. www.sumida.com
Taiyo Yuden www.t-yuden.com
TDK Corp. www.component.tdk.com
TOKO America, Inc. www.tokoam.com
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages
.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
8 SO S8-6F
21-0041